<div class="refentry" title="glGetBufferParameteriv"><a id="glGetBufferParameteriv"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>glGetBufferParameteriv — return parameters of a buffer object</p></div><div class="refsynopsisdiv" title="C Specification"><h2>C Specification</h2><div class="funcsynopsis"><table class="funcprototype-table"><tr><td><code class="funcdef">void <b class="fsfunc">glGetBufferParameteriv</b>(</code></td><td>GLenum <var class="pdparam">target</var>, </td></tr><tr><td> </td><td>GLenum <var class="pdparam">pname</var>, </td></tr><tr><td> </td><td>GLint * <var class="pdparam">params</var><code>)</code>;</td></tr></table><div class="funcprototype-spacer"> </div></div></div><div class="refsect1" title="Parameters"><a id="parameters"></a><h2>Parameters</h2><div class="variablelist"><dl><dt><span class="term">
		    <em class="parameter"><code>target</code></em>
		</span></dt><dd><p>
                    Specifies the target buffer object.
                    The symbolic constant must be <code class="constant">GL_ARRAY_BUFFER</code> or
                    <code class="constant">GL_ELEMENT_ARRAY_BUFFER</code>.
                </p></dd><dt><span class="term">
		    <em class="parameter"><code>pname</code></em>
		</span></dt><dd><p>
                    Specifies the symbolic name of a buffer object parameter.
                    Accepted values are
                    <code class="constant">GL_BUFFER_SIZE</code> or <code class="constant">GL_BUFFER_USAGE</code>.
                </p></dd><dt><span class="term">
		    <em class="parameter"><code>params</code></em>
		</span></dt><dd><p>Returns the requested parameter.</p></dd></dl></div></div><div class="refsect1" title="Description"><a id="description"></a><h2>Description</h2><p>
            <code class="function">glGetBufferParameteriv</code> returns in <em class="parameter"><code>params</code></em> a selected parameter of the buffer object
            specified by <em class="parameter"><code>target</code></em>.
        </p><p>
            <em class="parameter"><code>pname</code></em> names a specific buffer object parameter, as follows:
        </p><div class="variablelist"><dl><dt><span class="term"><code class="constant">GL_BUFFER_SIZE</code></span></dt><dd><p>
                        <em class="parameter"><code>params</code></em> returns the size of the buffer object, measured in bytes.
                        The initial value is 0.
                    </p></dd><dt><span class="term"><code class="constant">GL_BUFFER_USAGE</code></span></dt><dd><p>
                        <em class="parameter"><code>params</code></em> returns the buffer object's usage pattern.  The initial value is
                        <code class="constant">GL_STATIC_DRAW</code>.
                    </p></dd></dl></div></div><div class="refsect1" title="Notes"><a id="notes"></a><h2>Notes</h2><p>
            If an error is generated,
            no change is made to the contents of <em class="parameter"><code>params</code></em>.
        </p></div><div class="refsect1" title="Errors"><a id="errors"></a><h2>Errors</h2><p>
            <code class="constant">GL_INVALID_ENUM</code> is generated if <em class="parameter"><code>target</code></em> or <em class="parameter"><code>pname</code></em> is not an
            accepted value.
        </p><p>
            <code class="constant">GL_INVALID_OPERATION</code> is generated if the reserved buffer object name 0 is bound to <em class="parameter"><code>target</code></em>.
        </p></div><div class="refsect1" title="See Also"><a id="seealso"></a><h2>See Also</h2><p>
	<a class="citerefentry" href="glBufferData"><span class="citerefentry"><span class="refentrytitle">glBufferData</span></span></a>,
	<a class="citerefentry" href="glBindBuffer"><span class="citerefentry"><span class="refentrytitle">glBindBuffer</span></span></a>
	</p></div><div class="refsect1" title="Copyright"><a id="copyright"></a><h2>Copyright</h2><p>
	    Copyright © 2003-2004
	    Silicon Graphics, Inc. This document is licensed under the SGI
	    Free Software B License. For details, see
	    <a class="ulink" href="http://oss.sgi.com/projects/FreeB/" target="_top">http://oss.sgi.com/projects/FreeB/</a>.
        </p></div></div>
